What risks should I check before replacing FRC1206F3R90TS?

Before replacing, check the resistance tolerance and temperature coefficient (TCR). Some alternatives may have a wider tolerance (e.g., ±5%) which is unsuitable for precision circuits. Also, verify the TCR if the application is sensitive to temperature changes.

FRC1206F3R90TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC1206F3R90TS is a 1206-size, 3.9Ω, 1% tolerance thick film chip resistor. This page provides verified pin-compatible alternatives and functional substitutes from major manufacturers.

AI replacement insight

Electrical riskmedium

Some alternatives have wider tolerance (±5%) or unknown TCR. Verify these for your application.

Package risklow

All suggested alternatives use the same 1206 package, ensuring physical compatibility.

Can it be replaced directly?

Direct replacement for FRC1206F3R90TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

RC1206FR-073R9L from Yageo is the best choice, offering pin-to-pin compatibility and an improved temperature coefficient.

Main risk

The main risk when substituting is using a part with a wider tolerance (e.g., 5% instead of 1%), which can affect circuit accuracy.

Recommended alternatives

Yageo RC1206FR-073R9L is a pin-compatible alternative with a better temperature coefficient (TCR).

View details

Alternative comparison matrix

Feature / factor	FRC1206F3R90TS	RC1206FR-073R9L	1206W4F390KT5E	FRC1206J3R9 TS	Compatibility / risk
Resistance	3.9 Ω	3.9 Ω	3.9 Ω	3.9 Ω	3.9 Ω — Resistance value matches.; 1206W4F390KT5E: Resistance value matches.; FRC1206J3R9 TS: Resistance value matches.
Tolerance	±1%	±1%	±1%	±5%	±1% / ±5% — Tolerance matches.; 1206W4F390KT5E: Tolerance matches.; FRC1206J3R9 TS: Tolerance is wider than target.
Power	0.25 W	0.25 W	0.25 W	0.25 W	0.25 W — Power rating matches.; 1206W4F390KT5E: Power rating matches.; FRC1206J3R9 TS: Power rating matches.
Tcr	±400 ppm/°C	±200 ppm/°C	Not specified	±400 ppm/°C	±200 ppm/°C / Not specified / ±400 ppm/°C — Candidate has better thermal stability.; 1206W4F390KT5E: TCR is missing and must be verified from datasheet.; FRC1206J3R9 TS: TCR matches.
Package	1206	1206	1206	1206	1206 — Package size matches.; 1206W4F390KT5E: Package size matches.; FRC1206J3R9 TS: Package size matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC1206F3R90TS are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.